A prepositional phrase typically begins with a preposition, that is a word that specifies the relationship between two concepts, such as "near" or "away"
Here the preposition is "with" and the phrase is "with the proper help" - answer B (the "with" specifies a relation between "they" and "help"
Answer:
Central and local governments
Explanation:
A) An Indian Hindu converts to islam after visiting a Muslim university on a trade expedition through Persia.